Demountable rim.



y11.11. ECKBERG.

DEMOUNTABLE RIM.

APPLxcATloN 11u-:D AuG.a,1915.

ZQZ'nesses Patented 116111111916.

narran sfrarns rafrnu'r 'oracion RUDOLPH A. ECKBERG, OF DES MOINES,IOWA.

DEMOUNTABLE RIM.

#easy to "connect the sections together or separate them, and also soconstructed that when the parts are connected and clamped on the wheel,they will be firmly held by the pressure of the tire against separationand also against removal from the rim of the wheel. A

My invention consists in the'constr'uction, ,arrangement and combinationof the various parts of the device whereby the objects contemplated areattained, as hereinafter more 4fully set forth, pointed `out inv myclaim, and illustrated in the accompanying drawings, in which: v

Figure 1 shows a perspective view of a, demountable rim, embodyingl myinvention.

Fig. 2 shows an enlarged plan view of av portion of ,the inner surfaceof the rim. Fig. 3 shows a side elevationof the rim, the dotted linesshowing the position of one end of one of the sections during theprocess of separating or assemblying the parts. Fig. 4 shows a verticalsectional view through the rim, taken on the line 4--4 of Fig. 2, andshowing the rim installednon the tire. Fig. 5 shows a vertical sectionalView through the rim, taken near one side thereof showing the lockingplates in side elevation, and Fig.,6 shows a similar view with the keyshaped locking plate sprung downwardly and two of the rim sectionsslightly spread apart.

In the form of my invention, illustrated in the accompanying drawings, Ihave used the reference numeral 10 to indicate generally the elly of awheel, having on its outer surface the flat rim 11, at one edge of whichis an outwardly inclined member 12, having near its outer end a shoulder13.

My improved demountable rim comprises an annular fiat rim member 14having at its- Specication of Letters Patent.

Application filed August 3, 1915.

Patented Dec. 19, 1916.

seria1 No. 43,491. v

side edges outwardly extending flanges 15, which may be of anysultablesize or shape to fit the type of casing which is to be employedwith my rim.

My rim is made up of one or more sections, the ends of whlch areconnected with each other in the following manner: Secured to one rimsection near theend of such section, is a spring metal locking member 16projecting considerably beyond the section to which it is secured, andhaving at its upper end opposite lateral extensions 17. It will be seenthat the spring metal locking member 16 is substantially T-shaped. Whenthe rim ends are placed together, the part of the locking member whichhas the extension 17 overlaps the adjacent rim portion, as clearly shownin Figs. 2, 5- and 6. Secured 4to the said adjacent rim portion onopposite sides of the locking plate 16, are spaced parallel lockingmembers 18, the ends of which project slightly beyond the endv of therim portion to which they are secured, as shown in Figs. 5 and 6, sothat when the ends of the rim are placed together the end of the portion18 projects over the adjacent rim portion as shown, for instance, inFig. 5.

In Fig. 1, I have shown a rim, for purposes of illustration, made inthree sections. In assembling the rim-sections, the two ends of thelirst two sections are placed together bysliding them longitudinallytoward each other until the ends of the members 18 overlap the end ofthe rim portion to which the member 16 is secured, whereupon the portion17 may be easily sprung into position engaging the rim portion to whichthe members 18 are secured. The third rim sections may be secured to oneof the two which have been thus assembled by an operation similar tothat just described. The last joint is made by placing the ends of rimsections which are to be connected slightly apart, asshown in Fig. 6,the adjacent ends are then brought together in any suitable way as byprying with a screw-driver until the end of themember 18 clears theadjacent part ofthe adjacent rim section and the portion 17` will springinto position. The rim is assembled within the casing: The rim with thecasing mounted thereon can then be/placed on the wheel with one edge ofthe rim 14 resting on the shoulder 13, as shown in Fig. 4. For lockingthe rim in position on the .wheel, a bolt 19 is ex tended through a lug20\wl11ch lits against curved a warl ly andthe adjacent rim endS Splmgthe flange 12, as -shown in Fig. 4,v and also against the felly of thewheel, and is then extended through the felly 10.

On the side of the felly 10, opposite the,

lug 20, is a locking lug having a member 22 forming a washer memberyfrom which the lug and wedge member 23 extends laterally. In the washerportion 22 is a recess 24 receiving a nut 27 on vthe bolt 19 to .permitrotation of the nut. At the y bottom of the recess 24 is a laterallyextending annular recess 25, of greater diameter than the recess 24 andadapted to receive a washer 26 on the nutl 27. The bolt 19 is extendedthrough the downwardly extending portionof the wedge lug 22 and throughthe end lwhich has been placed in position in the recess-24 with thewasher 26, which is of larger diameter than the nut 27 received withinthe groove 25'." The groove25 and the recess are open at their lowerends to permit the end of a washer to--be slid into their position. The'nut 27 may then' be secured on the bolt with thewedge 23 receivedbetween the member 11 and the side edge of the rim` 14 opposite theflange 12. lt will be seen that a portion of the lug 22 projects beyondthe side edge of the rim 14 radially inwardly, and the pressure on therim 14 will prevent the demountable rim from sliding sidewise after aseries of the wedge lugs have been placed in position. When it isdesired to remove my demountable rim, the nut 27 is unscrewed, and

-von account of theffact that the washer 26 travels on the groove 25,the wedge lug'will be drawn outwardly until the riin can be slidlaterally away from the shoulder 13 and removed from the wheel.

' To take the rim. apart, a screw driver, or

the like, is inserted beneath the edge of the f rim collapses, to theposition shown by ydot-A ted lines in Fig. 3.

ri .je Shows the poli-.ion i7 Sprung ina Lacasse apart, and the dottedlines in Fig. 3 show one end of the spring member sprung inn wardly toposition for allowing the rim to collapse.

When my improved rim is assembled, it is rigidly and rmly lockedtogether and when the casingis placed thereon and the rim is secured onthe wheel by means of the wedge lugs, hereinbefore described, or anyother suitable means, the rim will be firmly held until properlyremoved. At the same time my improved rim is easily removed from thewheel, and can be easily collapsed for putting a new casing thereon.

lt will be noted that vthe end of the metal locking members 18, oppositethe projecting ends thereof, fit snugly against 'the member 17 when therim is assembled, as shown in Figs; 1, 2 and 5. lt will be understoodthat the rim 14 has an ordinary opening 30 to admit a valve casing, andmay be provided with lugs 31 t0 engage a groove or the like in themember 11 for preventing the rim from creeping on the wheel therebyinterfering with the valve. lt may also be noted in this connection thatthe member 1G is secured to the rim 14 by means of bolts rivets or thelike 33, which are spaced from the end of the rim on which the members16 are supported to permit the easy vspring of the members 16 away fromthe rim.

It will be understood that some changes may be made in the constructionand arrangement of the parts of my improved demountable rim withoutdeparting from its essential features and purposes, and it is'myintention to cover bythis application any such changes which may comewithin' the reasonable scope of my claim.

l claim as my invention. Y

A demountable rim comprising an annular rim member, transversely split,a metal locking member secured to the inner surface of the rim near oneend thereof, having at its projecting end laterally extending portions,plates on the inner surface of the other end of said rim arranged onoppositev sides of said projecting locking member and adapted to engagethe sides and projecting portions thereof, and also overlap the firstmentioned end of said rim.

Des Moines, Iowa,-July 14, 1915.

RUDOLPH A. ECKBERG.

' i Witnesses:

A. SHERMAN, A. G. HAGUE.

